Year SPI (scale 0-100) 2005 64.85 2006 65.4 2007 66.35625 2008 66.00625 2009 68.2625 2010 64.84375 2011 66.2875 2012 70.45625 2013 69.6375 2014 68.45 2015 64.76875 2016 65.8375 2017 64.9875 2018 63.93125 2019 56.99375 2020 63.9375 2021 80.9375 2022 80.9375